./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0068f83ad7eb3861b59041e8ebf2a38df44c3a60c0fafaf2450f6b793a60fbe ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:12:43,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:12:43,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:12:43,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:12:43,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:12:43,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:12:43,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:12:43,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:12:43,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:12:43,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:12:43,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:12:43,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:12:43,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:12:43,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:12:43,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:12:43,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:12:43,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:12:43,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:12:43,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:12:43,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:12:43,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:12:43,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:12:43,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:12:43,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:12:44,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:12:44,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:12:44,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:12:44,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:12:44,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:12:44,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:12:44,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:12:44,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:12:44,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:12:44,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:12:44,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:12:44,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:12:44,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:12:44,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:12:44,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:12:44,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:12:44,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:12:44,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:12:44,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:12:44,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:12:44,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:12:44,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:12:44,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:12:44,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:12:44,082 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:12:44,082 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:12:44,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:12:44,083 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:12:44,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:12:44,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:12:44,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:12:44,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:12:44,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:12:44,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:12:44,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:12:44,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:12:44,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:12:44,085 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:12:44,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:12:44,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:12:44,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:12:44,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:12:44,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:12:44,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:12:44,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:12:44,089 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:12:44,089 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0068f83ad7eb3861b59041e8ebf2a38df44c3a60c0fafaf2450f6b793a60fbe [2021-10-28 23:12:44,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:12:44,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:12:44,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:12:44,459 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:12:44,460 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:12:44,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2021-10-28 23:12:44,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/data/a924247bb/9be467a3945f431f923e033406e4a46f/FLAGea281a933 [2021-10-28 23:12:45,122 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:12:45,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2021-10-28 23:12:45,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/data/a924247bb/9be467a3945f431f923e033406e4a46f/FLAGea281a933 [2021-10-28 23:12:45,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/data/a924247bb/9be467a3945f431f923e033406e4a46f [2021-10-28 23:12:45,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:12:45,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:12:45,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:12:45,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:12:45,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:12:45,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3dca6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45, skipping insertion in model container [2021-10-28 23:12:45,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:12:45,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:12:45,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c[946,959] [2021-10-28 23:12:45,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:12:45,725 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:12:45,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c[946,959] [2021-10-28 23:12:45,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:12:45,756 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:12:45,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45 WrapperNode [2021-10-28 23:12:45,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:12:45,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:12:45,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:12:45,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:12:45,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:12:45,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:12:45,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:12:45,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:12:45,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:12:45,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:12:45,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:12:45,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:12:45,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (1/1) ... [2021-10-28 23:12:45,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:45,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:45,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:45,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:12:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:12:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-10-28 23:12:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-10-28 23:12:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:12:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-10-28 23:12:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-10-28 23:12:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:12:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:12:46,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:12:46,199 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:12:46,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:46 BoogieIcfgContainer [2021-10-28 23:12:46,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:12:46,204 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:12:46,204 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:12:46,208 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:12:46,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:12:46,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:12:45" (1/3) ... [2021-10-28 23:12:46,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f3477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:12:46, skipping insertion in model container [2021-10-28 23:12:46,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:12:46,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:45" (2/3) ... [2021-10-28 23:12:46,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f3477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:12:46, skipping insertion in model container [2021-10-28 23:12:46,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:12:46,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:46" (3/3) ... [2021-10-28 23:12:46,221 INFO L389 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_6-1.c [2021-10-28 23:12:46,303 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:12:46,304 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:12:46,304 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:12:46,304 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:12:46,304 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:12:46,305 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:12:46,305 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:12:46,305 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:12:46,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:12:46,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:46,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:46,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:46,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:12:46,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:46,366 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:12:46,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:12:46,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:46,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:46,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:46,371 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:12:46,372 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:46,380 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 15#L39true call main_#t~ret11 := fibo1(main_~x~0);< 5#fibo1ENTRYtrue [2021-10-28 23:12:46,380 INFO L793 eck$LassoCheckResult]: Loop: 5#fibo1ENTRYtrue ~n := #in~n; 9#L10true assume !(~n < 1); 8#L12true assume !(1 == ~n); 10#L15true call #t~ret7 := fibo2(~n - 1);< 14#fibo2ENTRYtrue ~n := #in~n; 12#L20true assume !(~n < 1); 17#L22true assume !(1 == ~n); 23#L25true call #t~ret9 := fibo1(~n - 1);< 5#fibo1ENTRYtrue [2021-10-28 23:12:46,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash 29896, now seen corresponding path program 1 times [2021-10-28 23:12:46,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:46,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209795533] [2021-10-28 23:12:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:46,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,510 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:12:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 181289832, now seen corresponding path program 1 times [2021-10-28 23:12:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:46,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269161589] [2021-10-28 23:12:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:46,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:12:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1313669423, now seen corresponding path program 1 times [2021-10-28 23:12:46,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:46,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953247230] [2021-10-28 23:12:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:46,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,648 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:46,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:12:47,046 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:47,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:47,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:47,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:47,048 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:12:47,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:47,049 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:47,049 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration1_Loop [2021-10-28 23:12:47,049 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:47,050 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:47,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:47,217 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:12:47,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:12:47,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:12:47,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:12:47,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,456 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:12:47,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,512 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:12:47,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 23:12:47,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:12:47,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,643 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:12:47,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,682 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:12:47,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,726 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:47,726 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:47,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,759 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:47,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:12:47,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:47,797 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:47,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:12:47,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:12:47,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:47,872 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:12:47,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:47,876 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:47,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:47,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:47,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:47,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:12:47,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:47,877 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:47,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:47,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration1_Loop [2021-10-28 23:12:47,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:47,877 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:47,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:47,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:48,016 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:48,021 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:12:48,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,024 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:12:48,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:12:48,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-28 23:12:48,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,157 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:12:48,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,201 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:12:48,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,247 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:12:48,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,292 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:12:48,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,372 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:12:48,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,449 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:12:48,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:48,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,513 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:12:48,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:48,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:48,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:48,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:48,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:48,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:48,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:48,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:48,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:12:48,560 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:12:48,560 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:12:48,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:48,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:48,567 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:48,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:12:48,575 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:12:48,579 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:12:48,579 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:12:48,580 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2021-10-28 23:12:48,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:48,626 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:12:48,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:48,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:12:48,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:48,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:12:48,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:12:48,956 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-28 23:12:48,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:12:49,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 116 transitions. Complement of second has 24 states. [2021-10-28 23:12:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 23:12:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:12:49,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-10-28 23:12:49,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-28 23:12:49,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:49,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 23:12:49,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:49,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2021-10-28 23:12:49,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:49,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-10-28 23:12:49,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:49,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 61 states and 82 transitions. [2021-10-28 23:12:49,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-28 23:12:49,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-28 23:12:49,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2021-10-28 23:12:49,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:49,283 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 82 transitions. [2021-10-28 23:12:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2021-10-28 23:12:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-10-28 23:12:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-28 23:12:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2021-10-28 23:12:49,320 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-10-28 23:12:49,321 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-10-28 23:12:49,321 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:12:49,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2021-10-28 23:12:49,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:49,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:49,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:49,326 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:49,327 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:49,327 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 197#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 214#L39 call main_#t~ret11 := fibo1(main_~x~0);< 213#fibo1ENTRY ~n := #in~n; 215#L10 assume !(~n < 1); 226#L12 assume !(1 == ~n); 208#L15 call #t~ret7 := fibo2(~n - 1);< 230#fibo2ENTRY ~n := #in~n; 236#L20 assume !(~n < 1); 249#L22 assume !(1 == ~n); 204#L25 call #t~ret9 := fibo1(~n - 1);< 216#fibo1ENTRY ~n := #in~n; 217#L10 assume ~n < 1;#res := 0; 205#fibo1FINAL assume true; 206#fibo1EXIT >#46#return; 207#L25-1 [2021-10-28 23:12:49,327 INFO L793 eck$LassoCheckResult]: Loop: 207#L25-1 call #t~ret10 := fibo1(~n - 2);< 212#fibo1ENTRY ~n := #in~n; 240#L10 assume !(~n < 1); 241#L12 assume !(1 == ~n); 211#L15 call #t~ret7 := fibo2(~n - 1);< 220#fibo2ENTRY ~n := #in~n; 243#L20 assume !(~n < 1); 242#L22 assume !(1 == ~n); 219#L25 call #t~ret9 := fibo1(~n - 1);< 212#fibo1ENTRY ~n := #in~n; 240#L10 assume ~n < 1;#res := 0; 238#fibo1FINAL assume true; 239#fibo1EXIT >#46#return; 207#L25-1 [2021-10-28 23:12:49,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1888024054, now seen corresponding path program 1 times [2021-10-28 23:12:49,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:49,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266719403] [2021-10-28 23:12:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:12:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:12:49,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:49,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266719403] [2021-10-28 23:12:49,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266719403] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:12:49,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:12:49,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:12:49,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280223504] [2021-10-28 23:12:49,471 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:12:49,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1730504828, now seen corresponding path program 1 times [2021-10-28 23:12:49,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:49,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36248578] [2021-10-28 23:12:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:12:49,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:49,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36248578] [2021-10-28 23:12:49,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36248578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:12:49,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:12:49,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:12:49,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890156614] [2021-10-28 23:12:49,575 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:12:49,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:49,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:12:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:12:49,581 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:12:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:49,683 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2021-10-28 23:12:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:12:49,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2021-10-28 23:12:49,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:49,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 66 states and 86 transitions. [2021-10-28 23:12:49,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-10-28 23:12:49,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-10-28 23:12:49,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 86 transitions. [2021-10-28 23:12:49,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:49,705 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 86 transitions. [2021-10-28 23:12:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 86 transitions. [2021-10-28 23:12:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2021-10-28 23:12:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) [2021-10-28 23:12:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions. [2021-10-28 23:12:49,715 INFO L704 BuchiCegarLoop]: Abstraction has 58 states and 76 transitions. [2021-10-28 23:12:49,715 INFO L587 BuchiCegarLoop]: Abstraction has 58 states and 76 transitions. [2021-10-28 23:12:49,715 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:12:49,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 76 transitions. [2021-10-28 23:12:49,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 23:12:49,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:49,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:49,719 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:49,719 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:49,719 INFO L791 eck$LassoCheckResult]: Stem: 341#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 342#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 360#L39 call main_#t~ret11 := fibo1(main_~x~0);< 359#fibo1ENTRY ~n := #in~n; 361#L10 assume !(~n < 1); 371#L12 assume !(1 == ~n); 354#L15 call #t~ret7 := fibo2(~n - 1);< 378#fibo2ENTRY ~n := #in~n; 382#L20 assume !(~n < 1); 398#L22 assume !(1 == ~n); 349#L25 call #t~ret9 := fibo1(~n - 1);< 362#fibo1ENTRY ~n := #in~n; 363#L10 assume !(~n < 1); 387#L12 assume 1 == ~n;#res := 1; 386#fibo1FINAL assume true; 385#fibo1EXIT >#46#return; 351#L25-1 [2021-10-28 23:12:49,720 INFO L793 eck$LassoCheckResult]: Loop: 351#L25-1 call #t~ret10 := fibo1(~n - 2);< 358#fibo1ENTRY ~n := #in~n; 375#L10 assume !(~n < 1); 369#L12 assume !(1 == ~n); 357#L15 call #t~ret7 := fibo2(~n - 1);< 391#fibo2ENTRY ~n := #in~n; 390#L20 assume !(~n < 1); 388#L22 assume !(1 == ~n); 352#L25 call #t~ret9 := fibo1(~n - 1);< 358#fibo1ENTRY ~n := #in~n; 375#L10 assume !(~n < 1); 369#L12 assume 1 == ~n;#res := 1; 370#fibo1FINAL assume true; 384#fibo1EXIT >#46#return; 351#L25-1 [2021-10-28 23:12:49,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1600771562, now seen corresponding path program 1 times [2021-10-28 23:12:49,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:49,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577871056] [2021-10-28 23:12:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:12:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:12:49,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:49,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577871056] [2021-10-28 23:12:49,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577871056] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:49,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389704512] [2021-10-28 23:12:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:49,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:49,886 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:49,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 23:12:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:12:49,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:50,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:12:50,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389704512] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:50,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:50,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 23:12:50,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860586137] [2021-10-28 23:12:50,100 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:12:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:50,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2106067024, now seen corresponding path program 1 times [2021-10-28 23:12:50,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:50,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225795494] [2021-10-28 23:12:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:50,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:50,110 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:50,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:12:50,414 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:50,414 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:50,415 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:50,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:50,415 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:12:50,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:50,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:50,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration3_Loop [2021-10-28 23:12:50,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:50,415 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:50,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:50,512 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:50,512 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:12:50,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,514 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:50,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:12:50,568 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:50,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:50,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,614 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:50,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:12:50,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:50,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:50,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,689 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:50,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:12:50,724 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:50,724 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:50,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,772 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:50,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:12:50,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:50,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:50,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,850 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:50,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:12:50,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:50,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:50,932 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:50,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:12:50,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:50,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:12:52,285 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:12:52,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:52,289 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:52,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:52,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:52,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:52,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:12:52,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:52,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:52,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration3_Loop [2021-10-28 23:12:52,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:52,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:52,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:52,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:52,388 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:12:52,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:52,391 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:52,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:52,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:52,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:52,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:52,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:52,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:52,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:52,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:52,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:12:52,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:52,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:52,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:52,464 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:52,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:52,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:52,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:52,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:52,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:52,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:52,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:52,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:52,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:12:52,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:52,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:52,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:52,534 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:52,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:52,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:52,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:52,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:52,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:52,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:52,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:12:52,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:52,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:52,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:52,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:12:52,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:52,586 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:52,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:12:52,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:52,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:52,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:52,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:52,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:52,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:52,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:52,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:52,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:12:52,615 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:12:52,615 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:12:52,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:52,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:52,627 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:52,628 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:12:52,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:12:52,628 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:12:52,628 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2021-10-28 23:12:52,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:12:52,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:52,659 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:12:52,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:52,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:12:52,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:52,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:12:52,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:12:53,087 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-10-28 23:12:53,088 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20 Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:12:53,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:53,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 191 states and 263 transitions. Complement of second has 40 states. [2021-10-28 23:12:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-28 23:12:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:12:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 73 transitions. [2021-10-28 23:12:53,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 14 letters. [2021-10-28 23:12:53,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:53,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 30 letters. Loop has 14 letters. [2021-10-28 23:12:53,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:53,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 28 letters. [2021-10-28 23:12:53,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:12:53,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 263 transitions. [2021-10-28 23:12:53,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:53,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 169 states and 237 transitions. [2021-10-28 23:12:53,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2021-10-28 23:12:53,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2021-10-28 23:12:53,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 237 transitions. [2021-10-28 23:12:53,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:53,614 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 237 transitions. [2021-10-28 23:12:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 237 transitions. [2021-10-28 23:12:53,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2021-10-28 23:12:53,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 102 states have internal predecessors, (122), 35 states have call successors, (36), 19 states have call predecessors, (36), 22 states have return successors, (48), 30 states have call predecessors, (48), 33 states have call successors, (48) [2021-10-28 23:12:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 206 transitions. [2021-10-28 23:12:53,635 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 206 transitions. [2021-10-28 23:12:53,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:12:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:12:53,636 INFO L87 Difference]: Start difference. First operand 152 states and 206 transitions. Second operand has 10 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:12:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:53,806 INFO L93 Difference]: Finished difference Result 183 states and 244 transitions. [2021-10-28 23:12:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:12:53,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 244 transitions. [2021-10-28 23:12:53,821 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:53,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 180 states and 240 transitions. [2021-10-28 23:12:53,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2021-10-28 23:12:53,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2021-10-28 23:12:53,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 240 transitions. [2021-10-28 23:12:53,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:53,835 INFO L681 BuchiCegarLoop]: Abstraction has 180 states and 240 transitions. [2021-10-28 23:12:53,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 240 transitions. [2021-10-28 23:12:53,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2021-10-28 23:12:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 113 states have internal predecessors, (130), 38 states have call successors, (40), 20 states have call predecessors, (40), 26 states have return successors, (55), 33 states have call predecessors, (55), 36 states have call successors, (55) [2021-10-28 23:12:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2021-10-28 23:12:53,855 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 225 transitions. [2021-10-28 23:12:53,855 INFO L587 BuchiCegarLoop]: Abstraction has 167 states and 225 transitions. [2021-10-28 23:12:53,855 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:12:53,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 225 transitions. [2021-10-28 23:12:53,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:53,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:53,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:53,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:12:53,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-28 23:12:53,864 INFO L791 eck$LassoCheckResult]: Stem: 1156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1157#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 1185#L39 call main_#t~ret11 := fibo1(main_~x~0);< 1219#fibo1ENTRY ~n := #in~n; 1207#L10 assume !(~n < 1); 1202#L12 assume !(1 == ~n); 1165#L15 call #t~ret7 := fibo2(~n - 1);< 1208#fibo2ENTRY ~n := #in~n; 1215#L20 assume !(~n < 1); 1164#L22 assume !(1 == ~n); 1166#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1250#L10 assume !(~n < 1); 1249#L12 assume !(1 == ~n); 1188#L15 call #t~ret7 := fibo2(~n - 1);< 1248#fibo2ENTRY ~n := #in~n; 1246#L20 assume !(~n < 1); 1247#L22 assume !(1 == ~n); 1186#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1250#L10 assume !(~n < 1); 1249#L12 assume !(1 == ~n); 1188#L15 call #t~ret7 := fibo2(~n - 1);< 1248#fibo2ENTRY ~n := #in~n; 1246#L20 assume ~n < 1;#res := 0; 1204#fibo2FINAL assume true; 1205#fibo2EXIT >#50#return; 1187#L15-1 call #t~ret8 := fibo2(~n - 2);< 1191#fibo2ENTRY ~n := #in~n; 1315#L20 assume !(~n < 1); 1314#L22 assume !(1 == ~n); 1186#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1251#L10 assume !(~n < 1); 1255#L12 assume 1 == ~n;#res := 1; 1256#fibo1FINAL assume true; 1245#fibo1EXIT >#46#return; 1236#L25-1 call #t~ret10 := fibo1(~n - 2);< 1178#fibo1ENTRY ~n := #in~n; 1241#L10 assume !(~n < 1); 1240#L12 assume !(1 == ~n); 1177#L15 call #t~ret7 := fibo2(~n - 1);< 1233#fibo2ENTRY ~n := #in~n; 1231#L20 assume ~n < 1;#res := 0; 1232#fibo2FINAL assume true; 1239#fibo2EXIT >#50#return; 1176#L15-1 call #t~ret8 := fibo2(~n - 2);< 1233#fibo2ENTRY ~n := #in~n; 1231#L20 assume !(~n < 1); 1227#L22 assume 1 == ~n;#res := 1; 1228#fibo2FINAL assume true; 1304#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#46#return; 1180#L25-1 call #t~ret10 := fibo1(~n - 2);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#50#return; 1159#L15-1 [2021-10-28 23:12:53,865 INFO L793 eck$LassoCheckResult]: Loop: 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume !(~n < 1); 1158#L22 assume !(1 == ~n); 1163#L25 call #t~ret9 := fibo1(~n - 1);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume !(~n < 1); 1158#L22 assume !(1 == ~n); 1163#L25 call #t~ret9 := fibo1(~n - 1);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#46#return; 1180#L25-1 call #t~ret10 := fibo1(~n - 2);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#50#return; 1159#L15-1 [2021-10-28 23:12:53,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash 376035563, now seen corresponding path program 1 times [2021-10-28 23:12:53,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:53,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13577208] [2021-10-28 23:12:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:53,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-10-28 23:12:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:12:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-10-28 23:12:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,157 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 74 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-28 23:12:54,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:54,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13577208] [2021-10-28 23:12:54,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13577208] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:54,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853814298] [2021-10-28 23:12:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:54,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:54,160 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:54,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 23:12:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:12:54,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 17 proven. 91 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-10-28 23:12:54,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853814298] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:54,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:54,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-10-28 23:12:54,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096049311] [2021-10-28 23:12:54,728 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:12:54,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 36254641, now seen corresponding path program 1 times [2021-10-28 23:12:54,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:54,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030481864] [2021-10-28 23:12:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:54,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:12:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 23:12:54,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:54,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030481864] [2021-10-28 23:12:54,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030481864] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:54,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244751168] [2021-10-28 23:12:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:54,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:54,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:54,830 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:54,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 23:12:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:54,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:12:54,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-28 23:12:55,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244751168] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:55,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:55,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 12 [2021-10-28 23:12:55,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637470161] [2021-10-28 23:12:55,196 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:12:55,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:55,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:12:55,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:12:55,198 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. cyclomatic complexity: 63 Second operand has 12 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 7 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2021-10-28 23:12:55,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:55,462 INFO L93 Difference]: Finished difference Result 223 states and 293 transitions. [2021-10-28 23:12:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:12:55,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 293 transitions. [2021-10-28 23:12:55,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:55,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 200 states and 262 transitions. [2021-10-28 23:12:55,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2021-10-28 23:12:55,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2021-10-28 23:12:55,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 262 transitions. [2021-10-28 23:12:55,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:55,476 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 262 transitions. [2021-10-28 23:12:55,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 262 transitions. [2021-10-28 23:12:55,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 184. [2021-10-28 23:12:55,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 115 states have (on average 1.182608695652174) internal successors, (136), 125 states have internal predecessors, (136), 38 states have call successors, (39), 24 states have call predecessors, (39), 31 states have return successors, (63), 34 states have call predecessors, (63), 36 states have call successors, (63) [2021-10-28 23:12:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2021-10-28 23:12:55,495 INFO L704 BuchiCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-10-28 23:12:55,495 INFO L587 BuchiCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-10-28 23:12:55,495 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:12:55,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 238 transitions. [2021-10-28 23:12:55,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:55,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:55,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:55,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:55,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-28 23:12:55,502 INFO L791 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 2270#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 2303#L39 call main_#t~ret11 := fibo1(main_~x~0);< 2337#fibo1ENTRY ~n := #in~n; 2325#L10 assume !(~n < 1); 2318#L12 assume !(1 == ~n); 2319#L15 call #t~ret7 := fibo2(~n - 1);< 2328#fibo2ENTRY ~n := #in~n; 2413#L20 assume !(~n < 1); 2412#L22 assume !(1 == ~n); 2312#L25 call #t~ret9 := fibo1(~n - 1);< 2351#fibo1ENTRY ~n := #in~n; 2349#L10 assume !(~n < 1); 2348#L12 assume !(1 == ~n); 2290#L15 call #t~ret7 := fibo2(~n - 1);< 2342#fibo2ENTRY ~n := #in~n; 2371#L20 assume !(~n < 1); 2369#L22 assume !(1 == ~n); 2280#L25 call #t~ret9 := fibo1(~n - 1);< 2351#fibo1ENTRY ~n := #in~n; 2352#L10 assume !(~n < 1); 2380#L12 assume 1 == ~n;#res := 1; 2381#fibo1FINAL assume true; 2443#fibo1EXIT >#46#return; 2289#L25-1 call #t~ret10 := fibo1(~n - 2);< 2291#fibo1ENTRY ~n := #in~n; 2323#L10 assume ~n < 1;#res := 0; 2324#fibo1FINAL assume true; 2452#fibo1EXIT >#48#return; 2295#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 2419#fibo2FINAL assume true; 2388#fibo2EXIT >#50#return; 2389#L15-1 [2021-10-28 23:12:55,503 INFO L793 eck$LassoCheckResult]: Loop: 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume !(1 == ~n); 2395#L25 call #t~ret9 := fibo1(~n - 1);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume !(1 == ~n); 2395#L25 call #t~ret9 := fibo1(~n - 1);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume 1 == ~n;#res := 1; 2417#fibo2FINAL assume true; 2397#fibo2EXIT >#50#return; 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume ~n < 1;#res := 0; 2414#fibo2FINAL assume true; 2411#fibo2EXIT >#52#return; 2390#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 2410#fibo1FINAL assume true; 2402#fibo1EXIT >#46#return; 2393#L25-1 call #t~ret10 := fibo1(~n - 2);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume 1 == ~n;#res := 1; 2417#fibo2FINAL assume true; 2397#fibo2EXIT >#50#return; 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume ~n < 1;#res := 0; 2414#fibo2FINAL assume true; 2411#fibo2EXIT >#52#return; 2390#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 2410#fibo1FINAL assume true; 2402#fibo1EXIT >#48#return; 2399#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 2396#fibo2FINAL assume true; 2391#fibo2EXIT >#50#return; 2389#L15-1 [2021-10-28 23:12:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1036448488, now seen corresponding path program 1 times [2021-10-28 23:12:55,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:55,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502456511] [2021-10-28 23:12:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:55,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-10-28 23:12:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:12:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:12:55,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:55,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502456511] [2021-10-28 23:12:55,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502456511] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:55,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193587442] [2021-10-28 23:12:55,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:55,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:55,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:55,690 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:55,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 23:12:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:55,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:12:55,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:12:55,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193587442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:55,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:55,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 15 [2021-10-28 23:12:55,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935106526] [2021-10-28 23:12:55,952 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:12:55,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:55,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1445694181, now seen corresponding path program 1 times [2021-10-28 23:12:55,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:55,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391558657] [2021-10-28 23:12:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:55,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:12:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:12:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-10-28 23:12:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:12:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-28 23:12:56,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:56,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391558657] [2021-10-28 23:12:56,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391558657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:56,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476426620] [2021-10-28 23:12:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:56,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:56,187 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:56,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 23:12:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:12:56,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-28 23:12:56,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476426620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:56,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:56,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-28 23:12:56,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078094212] [2021-10-28 23:12:56,548 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:12:56,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:12:56,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:12:56,549 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. cyclomatic complexity: 59 Second operand has 16 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:12:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:56,865 INFO L93 Difference]: Finished difference Result 206 states and 270 transitions. [2021-10-28 23:12:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:12:56,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 270 transitions. [2021-10-28 23:12:56,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:56,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 203 states and 266 transitions. [2021-10-28 23:12:56,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2021-10-28 23:12:56,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2021-10-28 23:12:56,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 266 transitions. [2021-10-28 23:12:56,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:12:56,877 INFO L681 BuchiCegarLoop]: Abstraction has 203 states and 266 transitions. [2021-10-28 23:12:56,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 266 transitions. [2021-10-28 23:12:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 194. [2021-10-28 23:12:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 132 states have internal predecessors, (143), 39 states have call successors, (40), 25 states have call predecessors, (40), 33 states have return successors, (68), 36 states have call predecessors, (68), 37 states have call successors, (68) [2021-10-28 23:12:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 251 transitions. [2021-10-28 23:12:56,919 INFO L704 BuchiCegarLoop]: Abstraction has 194 states and 251 transitions. [2021-10-28 23:12:56,919 INFO L587 BuchiCegarLoop]: Abstraction has 194 states and 251 transitions. [2021-10-28 23:12:56,919 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:12:56,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 251 transitions. [2021-10-28 23:12:56,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-10-28 23:12:56,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:12:56,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:12:56,928 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:56,928 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:56,929 INFO L791 eck$LassoCheckResult]: Stem: 3066#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3067#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 3104#L39 call main_#t~ret11 := fibo1(main_~x~0);< 3135#fibo1ENTRY ~n := #in~n; 3192#L10 assume !(~n < 1); 3191#L12 assume !(1 == ~n); 3076#L15 call #t~ret7 := fibo2(~n - 1);< 3190#fibo2ENTRY ~n := #in~n; 3129#L20 assume !(~n < 1); 3075#L22 assume !(1 == ~n); 3077#L25 call #t~ret9 := fibo1(~n - 1);< 3096#fibo1ENTRY ~n := #in~n; 3097#L10 assume !(~n < 1); 3121#L12 assume !(1 == ~n); 3122#L15 call #t~ret7 := fibo2(~n - 1);< 3126#fibo2ENTRY ~n := #in~n; 3134#L20 assume !(~n < 1); 3181#L22 assume !(1 == ~n); 3116#L25 call #t~ret9 := fibo1(~n - 1);< 3163#fibo1ENTRY ~n := #in~n; 3160#L10 assume !(~n < 1); 3156#L12 assume !(1 == ~n); 3132#L15 call #t~ret7 := fibo2(~n - 1);< 3126#fibo2ENTRY ~n := #in~n; 3134#L20 assume !(~n < 1); 3181#L22 assume !(1 == ~n); 3116#L25 call #t~ret9 := fibo1(~n - 1);< 3163#fibo1ENTRY ~n := #in~n; 3164#L10 assume !(~n < 1); 3188#L12 assume 1 == ~n;#res := 1; 3189#fibo1FINAL assume true; 3243#fibo1EXIT >#46#return; 3227#L25-1 call #t~ret10 := fibo1(~n - 2);< 3228#fibo1ENTRY ~n := #in~n; 3241#L10 assume ~n < 1;#res := 0; 3236#fibo1FINAL assume true; 3226#fibo1EXIT >#48#return; 3225#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 3223#fibo2FINAL assume true; 3222#fibo2EXIT >#50#return; 3072#L15-1 [2021-10-28 23:12:56,929 INFO L793 eck$LassoCheckResult]: Loop: 3072#L15-1 call #t~ret8 := fibo2(~n - 2);< 3133#fibo2ENTRY ~n := #in~n; 3127#L20 assume !(~n < 1); 3068#L22 assume !(1 == ~n); 3074#L25 call #t~ret9 := fibo1(~n - 1);< 3199#fibo1ENTRY ~n := #in~n; 3216#L10 assume !(~n < 1); 3214#L12 assume !(1 == ~n); 3069#L15 call #t~ret7 := fibo2(~n - 1);< 3133#fibo2ENTRY ~n := #in~n; 3127#L20 assume !(~n < 1); 3068#L22 assume 1 == ~n;#res := 1; 3073#fibo2FINAL assume true; 3221#fibo2EXIT >#50#return; 3072#L15-1 [2021-10-28 23:12:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1448014817, now seen corresponding path program 2 times [2021-10-28 23:12:56,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:56,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653301995] [2021-10-28 23:12:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:56,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-10-28 23:12:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:12:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:12:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:12:57,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:57,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653301995] [2021-10-28 23:12:57,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653301995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:57,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902789891] [2021-10-28 23:12:57,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:12:57,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:57,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:57,131 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:57,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 23:12:57,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:12:57,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:57,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:12:57,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:12:57,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902789891] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:57,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:57,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2021-10-28 23:12:57,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025397572] [2021-10-28 23:12:57,516 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:12:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1489002864, now seen corresponding path program 1 times [2021-10-28 23:12:57,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:57,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746590429] [2021-10-28 23:12:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:57,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:57,523 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:57,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:12:57,768 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:57,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:57,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:57,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:57,768 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:12:57,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:57,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:57,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:57,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration6_Loop [2021-10-28 23:12:57,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:57,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:57,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:57,852 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:57,853 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:12:57,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:57,857 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:57,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:57,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:57,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:12:57,885 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:57,885 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:57,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:57,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:57,928 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:57,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:57,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:57,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:12:57,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:57,952 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:57,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:57,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:57,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:57,982 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:57,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:57,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:58,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:12:58,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:58,012 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=1} Honda state: {fibo1_#t~ret7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:58,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 23:12:58,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:58,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:58,035 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:58,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:12:58,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:58,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:58,046 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:58,046 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:58,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:58,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:58,071 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:58,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:12:58,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:58,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:58,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:12:58,083 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:12:58,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:58,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:58,111 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:58,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:12:58,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:12:58,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:58,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:58,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:58,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:58,145 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:58,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:12:58,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:12:58,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:12:59,302 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:12:59,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:59,311 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:12:59,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:12:59,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:12:59,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:12:59,311 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:12:59,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:12:59,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:12:59,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration6_Loop [2021-10-28 23:12:59,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:12:59,312 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:12:59,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:12:59,403 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:12:59,403 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:12:59,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,406 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:12:59,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:59,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,484 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:12:59,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:12:59,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,554 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:12:59,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 23:12:59,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,615 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:12:59,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 23:12:59,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,663 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:12:59,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 23:12:59,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,712 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:12:59,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:59,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,751 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:12:59,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:12:59,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:59,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,807 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:12:59,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:12:59,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:12:59,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:12:59,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:12:59,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:12:59,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:12:59,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:12:59,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:12:59,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:12:59,827 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:12:59,827 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:12:59,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:12:59,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:59,830 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:59,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:12:59,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:12:59,832 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:12:59,832 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2021-10-28 23:12:59,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:12:59,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:59,883 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:12:59,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:59,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:12:59,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:00,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:13:00,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:00,609 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-10-28 23:13:00,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 251 transitions. cyclomatic complexity: 62 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:13:01,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 251 transitions. cyclomatic complexity: 62. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 739 states and 962 transitions. Complement of second has 40 states. [2021-10-28 23:13:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:13:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 69 transitions. [2021-10-28 23:13:01,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 40 letters. Loop has 14 letters. [2021-10-28 23:13:01,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:01,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 54 letters. Loop has 14 letters. [2021-10-28 23:13:01,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:01,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 40 letters. Loop has 28 letters. [2021-10-28 23:13:01,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:01,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 739 states and 962 transitions. [2021-10-28 23:13:01,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:01,115 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 40 [2021-10-28 23:13:01,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 739 states to 668 states and 885 transitions. [2021-10-28 23:13:01,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2021-10-28 23:13:01,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-10-28 23:13:01,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 668 states and 885 transitions. [2021-10-28 23:13:01,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:01,141 INFO L681 BuchiCegarLoop]: Abstraction has 668 states and 885 transitions. [2021-10-28 23:13:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states and 885 transitions. [2021-10-28 23:13:01,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 635. [2021-10-28 23:13:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 397 states have (on average 1.18639798488665) internal successors, (471), 434 states have internal predecessors, (471), 127 states have call successors, (133), 81 states have call predecessors, (133), 111 states have return successors, (236), 119 states have call predecessors, (236), 125 states have call successors, (236) [2021-10-28 23:13:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 840 transitions. [2021-10-28 23:13:01,193 INFO L704 BuchiCegarLoop]: Abstraction has 635 states and 840 transitions. [2021-10-28 23:13:01,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:13:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:13:01,195 INFO L87 Difference]: Start difference. First operand 635 states and 840 transitions. Second operand has 20 states, 17 states have (on average 2.0) internal successors, (34), 14 states have internal predecessors, (34), 9 states have call successors, (10), 6 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 23:13:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:01,756 INFO L93 Difference]: Finished difference Result 685 states and 812 transitions. [2021-10-28 23:13:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:13:01,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 685 states and 812 transitions. [2021-10-28 23:13:01,770 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 48 [2021-10-28 23:13:01,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 685 states to 296 states and 340 transitions. [2021-10-28 23:13:01,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-28 23:13:01,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-28 23:13:01,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 296 states and 340 transitions. [2021-10-28 23:13:01,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:01,777 INFO L681 BuchiCegarLoop]: Abstraction has 296 states and 340 transitions. [2021-10-28 23:13:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states and 340 transitions. [2021-10-28 23:13:01,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 258. [2021-10-28 23:13:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 166 states have (on average 1.1385542168674698) internal successors, (189), 182 states have internal predecessors, (189), 54 states have call successors, (55), 37 states have call predecessors, (55), 38 states have return successors, (54), 38 states have call predecessors, (54), 41 states have call successors, (54) [2021-10-28 23:13:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2021-10-28 23:13:01,789 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-10-28 23:13:01,789 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-10-28 23:13:01,789 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:13:01,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 298 transitions. [2021-10-28 23:13:01,792 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2021-10-28 23:13:01,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:01,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:01,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:01,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:01,795 INFO L791 eck$LassoCheckResult]: Stem: 5754#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 5755#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 5783#L39 call main_#t~ret11 := fibo1(main_~x~0);< 5817#fibo1ENTRY ~n := #in~n; 5903#L10 assume !(~n < 1); 5901#L12 assume !(1 == ~n); 5796#L15 call #t~ret7 := fibo2(~n - 1);< 5900#fibo2ENTRY ~n := #in~n; 5899#L20 assume !(~n < 1); 5897#L22 assume !(1 == ~n); 5781#L25 call #t~ret9 := fibo1(~n - 1);< 5780#fibo1ENTRY ~n := #in~n; 5782#L10 assume !(~n < 1); 5798#L12 assume !(1 == ~n); 5799#L15 call #t~ret7 := fibo2(~n - 1);< 5891#fibo2ENTRY ~n := #in~n; 5930#L20 assume !(~n < 1); 5929#L22 assume !(1 == ~n); 5892#L25 call #t~ret9 := fibo1(~n - 1);< 5926#fibo1ENTRY ~n := #in~n; 5927#L10 assume !(~n < 1); 5958#L12 assume !(1 == ~n); 5937#L15 call #t~ret7 := fibo2(~n - 1);< 5938#fibo2ENTRY ~n := #in~n; 5957#L20 assume !(~n < 1); 5955#L22 assume 1 == ~n;#res := 1; 5954#fibo2FINAL assume true; 5936#fibo2EXIT >#50#return; 5934#L15-1 call #t~ret8 := fibo2(~n - 2);< 5935#fibo2ENTRY ~n := #in~n; 5970#L20 assume ~n < 1;#res := 0; 5969#fibo2FINAL assume true; 5933#fibo2EXIT >#52#return; 5932#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 5931#fibo1FINAL assume true; 5928#fibo1EXIT >#46#return; 5836#L25-1 call #t~ret10 := fibo1(~n - 2);< 5880#fibo1ENTRY ~n := #in~n; 5887#L10 assume ~n < 1;#res := 0; 5885#fibo1FINAL assume true; 5871#fibo1EXIT >#48#return; 5872#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 5987#fibo2FINAL assume true; 5986#fibo2EXIT >#50#return; 5790#L15-1 call #t~ret8 := fibo2(~n - 2);< 5908#fibo2ENTRY [2021-10-28 23:13:01,795 INFO L793 eck$LassoCheckResult]: Loop: 5908#fibo2ENTRY ~n := #in~n; 5941#L20 assume !(~n < 1); 5912#L22 assume !(1 == ~n); 5878#L25 call #t~ret9 := fibo1(~n - 1);< 5884#fibo1ENTRY ~n := #in~n; 5918#L10 assume !(~n < 1); 5915#L12 assume !(1 == ~n); 5791#L15 call #t~ret7 := fibo2(~n - 1);< 5908#fibo2ENTRY [2021-10-28 23:13:01,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:01,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1055972758, now seen corresponding path program 1 times [2021-10-28 23:13:01,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:01,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804954078] [2021-10-28 23:13:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:01,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-10-28 23:13:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:13:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-10-28 23:13:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 23:13:02,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:13:02,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804954078] [2021-10-28 23:13:02,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804954078] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:02,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696029514] [2021-10-28 23:13:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:02,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:13:02,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,002 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 23:13:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:02,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:13:02,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-28 23:13:02,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696029514] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:02,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:02,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 18 [2021-10-28 23:13:02,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273495137] [2021-10-28 23:13:02,502 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:13:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash -28526872, now seen corresponding path program 2 times [2021-10-28 23:13:02,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:02,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108729242] [2021-10-28 23:13:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:02,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:02,513 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:02,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:02,660 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:02,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:02,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:02,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:02,661 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:13:02,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,661 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:02,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:02,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration7_Loop [2021-10-28 23:13:02,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:02,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:02,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:02,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:02,771 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:13:02,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,772 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:02,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:02,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:13:02,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:02,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:02,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 23:13:02,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,812 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:13:02,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:02,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:02,823 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:02,823 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:02,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:13:02,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,849 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:13:02,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:02,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:02,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:02,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:02,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 23:13:02,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,889 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:02,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:02,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:13:02,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:02,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:02,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 23:13:02,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:02,965 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:02,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:13:02,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:02,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:02,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:02,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:03,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:13:03,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,002 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:13:03,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:03,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:03,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:03,014 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:03,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,042 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:13:03,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:03,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:03,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:03,053 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret10=0} Honda state: {fibo2_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:03,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:13:03,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,078 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:13:03,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:03,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:03,090 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:03,090 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:03,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 23:13:03,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,116 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:13:03,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:03,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:03,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 23:13:03,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,152 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:13:03,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:13:03,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:03,240 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:13:03,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,243 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:03,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:03,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:03,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:03,244 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:13:03,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,244 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:03,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:03,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration7_Loop [2021-10-28 23:13:03,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:03,244 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:03,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:03,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:03,336 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:13:03,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,340 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:13:03,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 23:13:03,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,375 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:13:03,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 23:13:03,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,414 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:13:03,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 23:13:03,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,460 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:13:03,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-28 23:13:03,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,497 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:13:03,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,543 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:13:03,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,579 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:13:03,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,627 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:13:03,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,704 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:13:03,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:03,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-28 23:13:03,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,751 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 23:13:03,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:03,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:03,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:03,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:03,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:03,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:03,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:03,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:03,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:13:03,768 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:13:03,768 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:13:03,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:03,770 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:03,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:13:03,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:13:03,771 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:13:03,771 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:13:03,771 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-10-28 23:13:03,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:03,795 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:13:03,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:03,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:03,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:04,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:04,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:04,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:04,683 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:04,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:04,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 342 states and 389 transitions. Complement of second has 16 states. [2021-10-28 23:13:04,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-10-28 23:13:04,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 45 letters. Loop has 8 letters. [2021-10-28 23:13:04,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:04,827 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:04,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:04,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:05,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:05,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:05,694 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:05,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:05,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 342 states and 389 transitions. Complement of second has 16 states. [2021-10-28 23:13:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-10-28 23:13:05,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 45 letters. Loop has 8 letters. [2021-10-28 23:13:05,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:05,827 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:05,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:05,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:06,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:06,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:06,628 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:06,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:06,814 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 478 states and 540 transitions. Complement of second has 23 states. [2021-10-28 23:13:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:06,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 43 transitions. [2021-10-28 23:13:06,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 45 letters. Loop has 8 letters. [2021-10-28 23:13:06,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:06,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 53 letters. Loop has 8 letters. [2021-10-28 23:13:06,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:06,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 45 letters. Loop has 16 letters. [2021-10-28 23:13:06,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:06,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 478 states and 540 transitions. [2021-10-28 23:13:06,828 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2021-10-28 23:13:06,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 478 states to 339 states and 392 transitions. [2021-10-28 23:13:06,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-10-28 23:13:06,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2021-10-28 23:13:06,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 392 transitions. [2021-10-28 23:13:06,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:06,835 INFO L681 BuchiCegarLoop]: Abstraction has 339 states and 392 transitions. [2021-10-28 23:13:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 392 transitions. [2021-10-28 23:13:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 322. [2021-10-28 23:13:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 215 states have (on average 1.1162790697674418) internal successors, (240), 231 states have internal predecessors, (240), 63 states have call successors, (64), 51 states have call predecessors, (64), 44 states have return successors, (65), 39 states have call predecessors, (65), 50 states have call successors, (65) [2021-10-28 23:13:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 369 transitions. [2021-10-28 23:13:06,863 INFO L704 BuchiCegarLoop]: Abstraction has 322 states and 369 transitions. [2021-10-28 23:13:06,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:13:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:13:06,865 INFO L87 Difference]: Start difference. First operand 322 states and 369 transitions. Second operand has 18 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 23:13:07,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:07,214 INFO L93 Difference]: Finished difference Result 327 states and 372 transitions. [2021-10-28 23:13:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:13:07,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 372 transitions. [2021-10-28 23:13:07,220 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 59 [2021-10-28 23:13:07,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 325 states and 370 transitions. [2021-10-28 23:13:07,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 192 [2021-10-28 23:13:07,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 192 [2021-10-28 23:13:07,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 370 transitions. [2021-10-28 23:13:07,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:07,227 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 370 transitions. [2021-10-28 23:13:07,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 370 transitions. [2021-10-28 23:13:07,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 317. [2021-10-28 23:13:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 212 states have (on average 1.1132075471698113) internal successors, (236), 228 states have internal predecessors, (236), 62 states have call successors, (63), 50 states have call predecessors, (63), 43 states have return successors, (63), 38 states have call predecessors, (63), 49 states have call successors, (63) [2021-10-28 23:13:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 362 transitions. [2021-10-28 23:13:07,243 INFO L704 BuchiCegarLoop]: Abstraction has 317 states and 362 transitions. [2021-10-28 23:13:07,243 INFO L587 BuchiCegarLoop]: Abstraction has 317 states and 362 transitions. [2021-10-28 23:13:07,243 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:13:07,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 362 transitions. [2021-10-28 23:13:07,246 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 59 [2021-10-28 23:13:07,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:07,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:07,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:07,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:07,251 INFO L791 eck$LassoCheckResult]: Stem: 8631#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8632#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 8664#L39 call main_#t~ret11 := fibo1(main_~x~0);< 8702#fibo1ENTRY ~n := #in~n; 8772#L10 assume !(~n < 1); 8771#L12 assume !(1 == ~n); 8767#L15 call #t~ret7 := fibo2(~n - 1);< 8770#fibo2ENTRY ~n := #in~n; 8769#L20 assume !(~n < 1); 8768#L22 assume !(1 == ~n); 8759#L25 call #t~ret9 := fibo1(~n - 1);< 8766#fibo1ENTRY ~n := #in~n; 8763#L10 assume !(~n < 1); 8761#L12 assume !(1 == ~n); 8694#L15 call #t~ret7 := fibo2(~n - 1);< 8758#fibo2ENTRY ~n := #in~n; 8757#L20 assume !(~n < 1); 8754#L22 assume !(1 == ~n); 8742#L25 call #t~ret9 := fibo1(~n - 1);< 8764#fibo1ENTRY ~n := #in~n; 8765#L10 assume !(~n < 1); 8786#L12 assume !(1 == ~n); 8782#L15 call #t~ret7 := fibo2(~n - 1);< 8783#fibo2ENTRY ~n := #in~n; 8788#L20 assume !(~n < 1); 8787#L22 assume 1 == ~n;#res := 1; 8785#fibo2FINAL assume true; 8781#fibo2EXIT >#50#return; 8778#L15-1 call #t~ret8 := fibo2(~n - 2);< 8779#fibo2ENTRY ~n := #in~n; 8784#L20 assume ~n < 1;#res := 0; 8780#fibo2FINAL assume true; 8777#fibo2EXIT >#52#return; 8776#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 8775#fibo1FINAL assume true; 8741#fibo1EXIT >#46#return; 8735#L25-1 call #t~ret10 := fibo1(~n - 2);< 8833#fibo1ENTRY ~n := #in~n; 8845#L10 assume !(~n < 1); 8840#L12 assume 1 == ~n;#res := 1; 8835#fibo1FINAL assume true; 8826#fibo1EXIT >#48#return; 8827#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 8928#fibo2FINAL assume true; 8693#fibo2EXIT >#50#return; 8666#L15-1 call #t~ret8 := fibo2(~n - 2);< 8849#fibo2ENTRY [2021-10-28 23:13:07,251 INFO L793 eck$LassoCheckResult]: Loop: 8849#fibo2ENTRY ~n := #in~n; 8842#L20 assume !(~n < 1); 8839#L22 assume !(1 == ~n); 8829#L25 call #t~ret9 := fibo1(~n - 1);< 8837#fibo1ENTRY ~n := #in~n; 8874#L10 assume !(~n < 1); 8873#L12 assume !(1 == ~n); 8669#L15 call #t~ret7 := fibo2(~n - 1);< 8851#fibo2ENTRY ~n := #in~n; 8852#L20 assume !(~n < 1); 8864#L22 assume 1 == ~n;#res := 1; 8862#fibo2FINAL assume true; 8859#fibo2EXIT >#50#return; 8665#L15-1 call #t~ret8 := fibo2(~n - 2);< 8849#fibo2ENTRY [2021-10-28 23:13:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -177678082, now seen corresponding path program 2 times [2021-10-28 23:13:07,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:07,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251320641] [2021-10-28 23:13:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:07,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:07,276 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:07,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash -767060718, now seen corresponding path program 2 times [2021-10-28 23:13:07,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:07,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471082895] [2021-10-28 23:13:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:07,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:07,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:07,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 556691279, now seen corresponding path program 3 times [2021-10-28 23:13:07,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:07,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939190482] [2021-10-28 23:13:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:07,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-10-28 23:13:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:13:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-10-28 23:13:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-10-28 23:13:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 29 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-28 23:13:07,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:13:07,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939190482] [2021-10-28 23:13:07,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939190482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:07,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638227292] [2021-10-28 23:13:07,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:13:07,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:13:07,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:07,524 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:13:07,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-28 23:13:07,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 23:13:07,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:13:07,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:13:07,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-28 23:13:08,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638227292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:08,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:08,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 19 [2021-10-28 23:13:08,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668256431] [2021-10-28 23:13:08,402 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:08,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:08,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:08,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:08,402 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:13:08,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:08,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:08,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration8_Loop [2021-10-28 23:13:08,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:08,403 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:08,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,491 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:08,491 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:13:08,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,493 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:13:08,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,506 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,506 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:08,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,531 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:13:08,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,544 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:08,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,569 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 23:13:08,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:08,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,605 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 23:13:08,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-28 23:13:08,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,644 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 23:13:08,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,656 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 23:13:08,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,680 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 23:13:08,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,691 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,692 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:08,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,716 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 23:13:08,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:08,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,753 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:13:08,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:08,764 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:08,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-28 23:13:08,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,788 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:13:08,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:08,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-10-28 23:13:08,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:08,829 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:08,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:13:08,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:13:08,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:08,920 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:13:08,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-10-28 23:13:08,923 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:08,924 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:08,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:08,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:08,924 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:13:08,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:08,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:08,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:08,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration8_Loop [2021-10-28 23:13:08,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:08,924 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:08,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:08,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:09,003 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:09,003 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:13:09,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,005 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:13:09,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:09,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,041 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:13:09,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-28 23:13:09,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,084 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:13:09,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:09,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,121 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:13:09,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-10-28 23:13:09,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,161 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 23:13:09,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:09,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,199 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 23:13:09,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 23:13:09,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,235 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 23:13:09,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:09,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,304 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 23:13:09,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:09,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-10-28 23:13:09,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,344 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-28 23:13:09,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:09,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:09,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:09,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:09,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:09,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:09,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:09,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:09,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:13:09,359 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:13:09,359 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:13:09,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:09,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:09,361 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:09,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 23:13:09,362 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:13:09,362 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:13:09,362 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:13:09,362 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-10-28 23:13:09,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-10-28 23:13:09,393 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:13:09,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:09,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:09,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:10,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:10,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:13:10,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:10,370 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-10-28 23:13:10,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:10,698 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 405 states and 460 transitions. Complement of second has 28 states. [2021-10-28 23:13:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 33 transitions. [2021-10-28 23:13:10,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 33 transitions. Stem has 46 letters. Loop has 14 letters. [2021-10-28 23:13:10,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:10,700 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:10,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:10,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:10,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:11,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:13:11,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:11,718 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2021-10-28 23:13:11,718 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:12,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 405 states and 460 transitions. Complement of second has 28 states. [2021-10-28 23:13:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 33 transitions. [2021-10-28 23:13:12,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 33 transitions. Stem has 46 letters. Loop has 14 letters. [2021-10-28 23:13:12,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:12,011 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:12,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:12,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:13:12,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:12,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:13:12,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:12,909 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-10-28 23:13:12,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:13,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 651 states and 735 transitions. Complement of second has 30 states. [2021-10-28 23:13:13,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:13:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 56 transitions. [2021-10-28 23:13:13,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 46 letters. Loop has 14 letters. [2021-10-28 23:13:13,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:13,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 60 letters. Loop has 14 letters. [2021-10-28 23:13:13,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:13,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 46 letters. Loop has 28 letters. [2021-10-28 23:13:13,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:13,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 651 states and 735 transitions. [2021-10-28 23:13:13,297 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2021-10-28 23:13:13,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 651 states to 414 states and 484 transitions. [2021-10-28 23:13:13,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-10-28 23:13:13,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2021-10-28 23:13:13,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 484 transitions. [2021-10-28 23:13:13,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:13,306 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 484 transitions. [2021-10-28 23:13:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 484 transitions. [2021-10-28 23:13:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 359. [2021-10-28 23:13:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 237 states have (on average 1.1223628691983123) internal successors, (266), 254 states have internal predecessors, (266), 71 states have call successors, (72), 56 states have call predecessors, (72), 51 states have return successors, (72), 48 states have call predecessors, (72), 58 states have call successors, (72) [2021-10-28 23:13:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 410 transitions. [2021-10-28 23:13:13,322 INFO L704 BuchiCegarLoop]: Abstraction has 359 states and 410 transitions. [2021-10-28 23:13:13,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:13:13,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:13:13,323 INFO L87 Difference]: Start difference. First operand 359 states and 410 transitions. Second operand has 19 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 15 states have internal predecessors, (46), 9 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 23:13:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:13,732 INFO L93 Difference]: Finished difference Result 183 states and 206 transitions. [2021-10-28 23:13:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:13:13,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 206 transitions. [2021-10-28 23:13:13,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:13:13,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 159 states and 180 transitions. [2021-10-28 23:13:13,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-10-28 23:13:13,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2021-10-28 23:13:13,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 180 transitions. [2021-10-28 23:13:13,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:13,740 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-10-28 23:13:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 180 transitions. [2021-10-28 23:13:13,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-10-28 23:13:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 109 states have internal predecessors, (113), 31 states have call successors, (31), 23 states have call predecessors, (31), 24 states have return successors, (36), 26 states have call predecessors, (36), 28 states have call successors, (36) [2021-10-28 23:13:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 180 transitions. [2021-10-28 23:13:13,747 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-10-28 23:13:13,747 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-10-28 23:13:13,747 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:13:13,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 180 transitions. [2021-10-28 23:13:13,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:13:13,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:13,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:13,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:13,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:13,752 INFO L791 eck$LassoCheckResult]: Stem: 11942#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11943#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 11964#L39 call main_#t~ret11 := fibo1(main_~x~0);< 11988#fibo1ENTRY ~n := #in~n; 11996#L10 assume !(~n < 1); 11994#L12 assume !(1 == ~n); 11991#L15 call #t~ret7 := fibo2(~n - 1);< 11992#fibo2ENTRY ~n := #in~n; 12027#L20 assume !(~n < 1); 12025#L22 assume !(1 == ~n); 11960#L25 call #t~ret9 := fibo1(~n - 1);< 11959#fibo1ENTRY ~n := #in~n; 11961#L10 assume !(~n < 1); 11973#L12 assume !(1 == ~n); 11974#L15 call #t~ret7 := fibo2(~n - 1);< 12017#fibo2ENTRY ~n := #in~n; 12062#L20 assume !(~n < 1); 12059#L22 assume !(1 == ~n); 11966#L25 call #t~ret9 := fibo1(~n - 1);< 12058#fibo1ENTRY ~n := #in~n; 12056#L10 assume !(~n < 1); 12054#L12 assume !(1 == ~n); 11945#L15 call #t~ret7 := fibo2(~n - 1);< 11979#fibo2ENTRY ~n := #in~n; 11981#L20 assume !(~n < 1); 11944#L22 assume 1 == ~n;#res := 1; 11946#fibo2FINAL assume true; 11983#fibo2EXIT >#50#return; 11965#L15-1 call #t~ret8 := fibo2(~n - 2);< 11967#fibo2ENTRY ~n := #in~n; 12060#L20 assume ~n < 1;#res := 0; 12051#fibo2FINAL assume true; 12050#fibo2EXIT >#52#return; 11986#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 11987#fibo1FINAL assume true; 12097#fibo1EXIT >#46#return; 11951#L25-1 call #t~ret10 := fibo1(~n - 2);< 12042#fibo1ENTRY ~n := #in~n; 12100#L10 assume !(~n < 1); 12099#L12 assume 1 == ~n;#res := 1; 11950#fibo1FINAL assume true; 11952#fibo1EXIT >#48#return; 12040#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 12036#fibo2FINAL assume true; 12016#fibo2EXIT >#50#return; 12013#L15-1 call #t~ret8 := fibo2(~n - 2);< 12015#fibo2ENTRY ~n := #in~n; 12065#L20 assume ~n < 1;#res := 0; 12064#fibo2FINAL assume true; 12049#fibo2EXIT >#52#return; 12010#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 12009#fibo1FINAL assume true; 12002#fibo1EXIT >#46#return; 11998#L25-1 call #t~ret10 := fibo1(~n - 2);< 12000#fibo1ENTRY ~n := #in~n; 12028#L10 assume !(~n < 1); 12026#L12 assume !(1 == ~n); 12021#L15 call #t~ret7 := fibo2(~n - 1);< 12024#fibo2ENTRY [2021-10-28 23:13:13,752 INFO L793 eck$LassoCheckResult]: Loop: 12024#fibo2ENTRY ~n := #in~n; 12046#L20 assume !(~n < 1); 12043#L22 assume !(1 == ~n); 12032#L25 call #t~ret9 := fibo1(~n - 1);< 12038#fibo1ENTRY ~n := #in~n; 12057#L10 assume !(~n < 1); 12055#L12 assume !(1 == ~n); 12022#L15 call #t~ret7 := fibo2(~n - 1);< 12024#fibo2ENTRY [2021-10-28 23:13:13,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash -574560183, now seen corresponding path program 4 times [2021-10-28 23:13:13,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:13,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817417527] [2021-10-28 23:13:13,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:13,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:13:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:13:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:13:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-10-28 23:13:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-10-28 23:13:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 23:13:13,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:13:13,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817417527] [2021-10-28 23:13:13,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817417527] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:13,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927293907] [2021-10-28 23:13:13,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:13:13,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:13:13,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:13,972 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:13:13,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-28 23:13:14,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:13:14,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:13:14,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:13:14,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 23:13:14,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927293907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:14,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:14,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 16 [2021-10-28 23:13:14,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635267943] [2021-10-28 23:13:14,786 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:13:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:14,786 INFO L85 PathProgramCache]: Analyzing trace with hash -28526872, now seen corresponding path program 3 times [2021-10-28 23:13:14,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:14,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892443433] [2021-10-28 23:13:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:14,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:14,795 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:14,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:14,929 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:14,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:14,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:14,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:14,930 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:13:14,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:14,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:14,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:14,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration9_Loop [2021-10-28 23:13:14,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:14,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:14,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:14,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:15,020 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:13:15,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,028 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-28 23:13:15,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,096 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-28 23:13:15,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,120 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,161 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-28 23:13:15,186 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,186 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-28 23:13:15,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,220 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-28 23:13:15,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-10-28 23:13:15,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,256 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-28 23:13:15,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,267 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-28 23:13:15,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,291 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-28 23:13:15,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-10-28 23:13:15,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,326 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-28 23:13:15,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,337 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,337 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret10=0} Honda state: {fibo2_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-10-28 23:13:15,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,362 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-28 23:13:15,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,373 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-28 23:13:15,397 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,398 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-28 23:13:15,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,409 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:15,409 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:15,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-10-28 23:13:15,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,433 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-28 23:13:15,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:15,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-28 23:13:15,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,471 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-28 23:13:15,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:13:15,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:15,558 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:13:15,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,561 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:15,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:15,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:15,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:15,561 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:13:15,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:15,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:15,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration9_Loop [2021-10-28 23:13:15,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:15,562 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:15,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:15,639 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:15,639 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:13:15,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,641 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-28 23:13:15,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,680 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-28 23:13:15,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-10-28 23:13:15,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,724 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-28 23:13:15,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-28 23:13:15,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,786 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-28 23:13:15,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-28 23:13:15,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,823 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-28 23:13:15,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2021-10-28 23:13:15,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,860 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-28 23:13:15,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-10-28 23:13:15,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,897 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-28 23:13:15,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,935 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-10-28 23:13:15,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:15,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:15,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:15,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:15,971 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:15,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-28 23:13:15,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:15,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:15,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:15,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:15,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:15,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:15,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:15,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:15,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:16,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:16,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:16,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:16,009 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:16,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-28 23:13:16,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:16,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:16,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:16,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:16,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:16,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:16,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:16,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:16,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:13:16,024 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:13:16,024 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:13:16,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:16,026 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:16,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-28 23:13:16,027 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:13:16,027 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:13:16,027 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:13:16,027 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-10-28 23:13:16,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:16,052 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:13:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:16,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:13:16,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:16,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:17,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:17,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:17,217 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:17,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:17,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 177 states and 198 transitions. Complement of second has 15 states. [2021-10-28 23:13:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2021-10-28 23:13:17,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 58 letters. Loop has 8 letters. [2021-10-28 23:13:17,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:17,329 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:17,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:17,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:13:17,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:18,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:18,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:18,241 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:18,241 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:18,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 177 states and 198 transitions. Complement of second has 15 states. [2021-10-28 23:13:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:18,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2021-10-28 23:13:18,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 58 letters. Loop has 8 letters. [2021-10-28 23:13:18,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:18,355 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:13:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:18,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:13:18,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:19,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:19,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:19,244 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-10-28 23:13:19,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:19,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 266 states and 297 transitions. Complement of second has 25 states. [2021-10-28 23:13:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:13:19,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 42 transitions. [2021-10-28 23:13:19,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 58 letters. Loop has 8 letters. [2021-10-28 23:13:19,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:19,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 66 letters. Loop has 8 letters. [2021-10-28 23:13:19,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:19,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 58 letters. Loop has 16 letters. [2021-10-28 23:13:19,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:19,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 266 states and 297 transitions. [2021-10-28 23:13:19,389 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:13:19,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 266 states to 0 states and 0 transitions. [2021-10-28 23:13:19,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:13:19,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:13:19,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:13:19,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:13:19,390 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:19,390 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:19,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:19,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:13:19,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:13:19,391 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 8 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-28 23:13:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:19,392 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:13:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:13:19,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:13:19,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:13:19,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:13:19,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:13:19,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:13:19,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:13:19,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:13:19,393 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:19,393 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:19,393 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:19,393 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:13:19,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:13:19,394 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:13:19,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:13:19,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:13:19 BoogieIcfgContainer [2021-10-28 23:13:19,401 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:13:19,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:13:19,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:13:19,402 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:13:19,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:46" (3/4) ... [2021-10-28 23:13:19,406 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:13:19,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:13:19,408 INFO L168 Benchmark]: Toolchain (without parser) took 33936.49 ms. Allocated memory was 123.7 MB in the beginning and 220.2 MB in the end (delta: 96.5 MB). Free memory was 81.9 MB in the beginning and 56.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 121.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,409 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 98.0 MB in the end (delta: 70.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:19,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.89 ms. Allocated memory is still 123.7 MB. Free memory was 81.7 MB in the beginning and 98.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.78 ms. Allocated memory is still 123.7 MB. Free memory was 98.6 MB in the beginning and 97.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,412 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 123.7 MB. Free memory was 97.3 MB in the beginning and 96.5 MB in the end (delta: 808.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:19,414 INFO L168 Benchmark]: RCFGBuilder took 383.59 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 86.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,415 INFO L168 Benchmark]: BuchiAutomizer took 33197.13 ms. Allocated memory was 123.7 MB in the beginning and 220.2 MB in the end (delta: 96.5 MB). Free memory was 86.4 MB in the beginning and 56.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 127.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,415 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 220.2 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:19,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 98.0 MB in the end (delta: 70.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.89 ms. Allocated memory is still 123.7 MB. Free memory was 81.7 MB in the beginning and 98.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.78 ms. Allocated memory is still 123.7 MB. Free memory was 98.6 MB in the beginning and 97.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 123.7 MB. Free memory was 97.3 MB in the beginning and 96.5 MB in the end (delta: 808.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 383.59 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 86.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 33197.13 ms. Allocated memory was 123.7 MB in the beginning and 220.2 MB in the end (delta: 96.5 MB). Free memory was 86.4 MB in the beginning and 56.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 127.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.56 ms. Allocated memory is still 220.2 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (8 trivial, 3 deterministic, 3 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. One deterministic module has affine ranking function n and consists of 12 locations. One deterministic module has affine ranking function n and consists of 12 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. One nondeterministic module has affine ranking function \old(n) and consists of 10 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. 8 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.1s and 10 iterations. TraceHistogramMax:8. Analysis of lassos took 17.2s. Construction of modules took 2.1s. Büchi inclusion checks took 13.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 12. Automata minimization 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 221 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 317 states and ocurred in iteration 7. Nontrivial modules had stage [3, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/9 HoareTripleCheckerStatistics: 389 SDtfs, 979 SDslu, 1057 SDs, 0 SdLazy, 2641 SolverSat, 536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI3 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf94 lsp93 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf92 smp81 dnf100 smp100 tf110 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 42 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:13:19,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:19,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-10-28 23:13:19,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-10-28 23:13:20,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:20,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:20,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:20,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:20,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:21,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-28 23:13:21,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76c11d15-7ec2-4943-9677-259ebc6072b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...